Improvement in vehicle axle-boxes



I. N. CAMP.

VEHICLE AXLE-BOX.

No. 192,677. Patented J'uly 3,1877.

ATTORNEYS.

N.FETERS, PHOTO-LITHOGRAF'HER, WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

ISAAC NEWTON CAMP, OF DEERFIELD, llHClIIGAN.

IMPROVEMENT IN VEHICLE AXLE- BOXES.

Specification forming part of Letters Patent N 0. 192,677, dated July 3,1877; application filed April 3,1877.

To all whom it may concern:

Be it known that I, ISAAC N. CAMP, of Deerfield, in the county ofLenawee and State of Michigan, have invented a new and Improved WagonAxle-Box, of which the following is a specification 1n the accompanyingdrawing, Fignre l represents a vertical longitudinal section of myimproved axle-box; Fig. 2 a top view, with parts broken off to showinterior of box; and Figs. 3 and 4 are a front view and transversesection of the flanged box-retaining cap, seated on the square axle.

Similar letters of reference indicate corresponding parts.

The invention relates to an improved selflubricating axle-box forvehicles, shafting, and other purposes, by which the oil may be suppliedWithout taking off the wheel, and

confined securely Within the box without admitting the entrance of dust,so as to eoono' mize the oil and save the time required for the frequentoiling of wheels.

The invention will first be described in connection with the drawing,and then pointed out in the claim.

In the drawing, A represents the axle, which is inclosed at thehub-section with a revolving box, B, provided with outer spiral orothergrooves or channels, a, and, it desired,an inner returning groovefor the oil. The groove or grooves 01. are provided at suitabledistances with perforations b, through which the oil passes to the axleto lubricate the bearing of box and axle.

The box B is inclosed by a second outer box, C, that is retained,together with the inner box, by flanged caps D, at both ends, theflanged caps bearing against interposed leather washers d, to preventtheentrance of dust and the escape of oil.

The inner annular flanges d of the caps D extend around the inner box B,and bear on the leather washer, and on the ends of the outerinclosing-box C, while the outer flanges of the caps enter correspondinggrooves of the revolving hub. The cap D at the inner side of the hub iswelded on to the round or square axle, being in the latter case providedwith a square flange or seat, as shown in Figs.' 3 and 4, While theouter is screwed into the same, andsecured against turning loose by backmotion, by an additional center screw, 0. The oil is supplied to the boxby a cylindrical cup, 0, that passes through a perforation of the hub,and is securely closed bya screwplug.

The box may be made of copper, brass, or I other material, and beapplied to vehicles of all kinds, being intended to take up all thewear, so as to be readily removed when worn out and a new box inserted.

The quantity of oil in box and cup holds out for a considerable lengthof time, as none of it is lost. The box is readily refilled by turningthe Wheel until the cup is in vertical position, when the plug isremoved, the oil put in, and the cup closed again, which can all be donewithout taking off the wheel from the axle. The oil is distributeduniformly over the entire axle, by the supply channels and holes, andthereby a continuous and reliable, yet economical, lubrication of theaxle obtained.

For the purposeof furnishing an additional safeguard against theentrance of dust to the box, adust-cap is applied to the outer end ofthe box fitted over the hand on the hub, and secured thereto by three orfour screws seated in countersunk holes. This cap is made of sheet-ironfor wagons, and of brass, copper, or silver-plated, for better class ofcarriages.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The combination of inner box B and outer box C withthe caps 1), having flanges d, the washers d and the center screw 0, asshown and described.

ISAAC NEWTON CAMP.

Witnesses:

HENRY E. GoWLEs, JOSEPH F. BLIvEN.

